The light music department of Cherry Hill High School, four funny, playful and lovely girls, Hirazawa (voiced by Tomizaki), Akiyama Mio (voiced by Yoko Niigi), Tanaka (voiced by Congmi Sato) and Qinkuo (voiced by Shoumei Caiko), are about to graduate. In order to commemorate this last moment, they decided to organize their own graduation trip, and after a hilarious discussion, the girls finally locked their destination in London, England. They were accompanied by their younger sister Nakano Azusa (voiced by Zhuda Cenai), who also belongs to the light department. Only the four discussed that they would write a song for Zi Meow as a farewell gift before graduation. while they were dealing with various conditions during the journey, they had to finish the creation as soon as possible, and the staid London was also infected by the youthful and happy breath of the girls. This film is based on a four-frame cartoon of the same name by the Japanese cartoonist Kakifly.